Diddy‘s bash at his Miami Star Island home Saturday night was so packed, the hip-hop mogul found himself short on valets, and he personally popped next door to see if he could poach some from another Art Basel bacchanal. Spies say Diddy arrived “driving a golf cart to coerce the valets” at a Niche Media fete “a few doors down.” But the staff was too busy to lend a hand. Diddy’s party, hosted by Naomi Campbell, served as another 50th birthday toast for the model’s beau, Vladimir Doronin.